body {
  margin: 0;
  background: #000;
  color: #fff;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

main {
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1.2rem;
  color: #000;
  background: #fff;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}

.btn:hover {
  background: #444;
  color: #fff;
}
form { max-width: 420px; margin: 0 auto; text-align: left; }
label { display:block; font-weight:600; margin:0 0 8px; }
input, textarea {
  width:100%; margin:6px 0 16px; padding:10px; border-radius:6px;
  border:1px solid #333; background:#111; color:#fff;
}
button.btn { width:100%; }
#status { margin-top:12px; color:#9ee; font-size:.95rem; }